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noop()

noop middleware.

Source

function noop(req, res, next) {
  next();
}

JSON

Parse JSON request bodies, providing the
parsed object as req.body.

Options

strict when false anything JSON.parse() accepts will be parsed
reviver used as the second "reviver" argument for JSON.parse
limit byte limit disabled by default

Object options
returns Function

Source

exports = module.exports = function(options){
  var options = options || {}
    , strict = options.strict === false
      ? false
      : true;

  var limit = options.limit
    ? _limit(options.limit)
    : noop;

  return function json(req, res, next) {
    if (req._body) return next();
    req.body = req.body || {};

    // check Content-Type
    if ('application/json' != utils.mime(req)) return next();

    // flag as parsed
    req._body = true;

    // parse
    limit(req, res, function(err){
      if (err) return next(err);
      var buf = '';
      req.setEncoding('utf8');
      req.on('data', function(chunk){ buf += chunk });
      req.on('end', function(){
        if (strict && '{' != buf[0] && '[' != buf[0]) return next(utils.error(400, 'invalid json'));
        try {
          req.body = JSON.parse(buf, options.reviver);
          next();
        } catch (err){
          err.body = buf;
          err.status = 400;
          next(err);
        }
      });
    });
  }
};